1406505656260 has 24 divisors (see below), whose sum is σ = 2986849094040. Its totient is φ = 556280888064.

The previous prime is 1406505656219. The next prime is 1406505656261. The reversal of 1406505656260 is 626565056041.

It can be written as a sum of positive squares in 4 ways, for example, as 4228120576 + 1402277535684 = 65024^2 + 1184178^2 .

It is a super-2 number, since 2×1406505656260² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1406505656260.

It is not an unprimeable number, because it can be changed into a prime (1406505656261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395084079 + ... + 395087638.

It is an arithmetic number, because the mean of its divisors is an integer number (124452045585).

Almost surely, 2^{1406505656260} is an apocalyptic number.

1406505656260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1406505656260 is an abundant number, since it is smaller than the sum of its proper divisors (1580343437780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1406505656260 is a wasteful number, since it uses less digits than its factorization.

1406505656260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790171815 (or 790171813 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 1406505656260 in words is "one trillion, four hundred six billion, five hundred five million, six hundred fifty-six thousand, two hundred sixty".